|| List of recent Impedance-related patents
|System and method for designing via of printed circuit board|
A via design method includes doing a simulation according to input data to obtain the impedance of the via of the reference printed circuit board (pcb). An optimal via model is determined according to a group of input data.
|Method and device for the diagnosis of defects in components of chassis systems of motor vehicles|
A method for the diagnosis of defects in components of motor vehicle chassis systems. Vibrations produced by rotating components of the chassis system due to an imbalance are filtered such that the frequency range which depends on the wheel rotation speed and contains the imbalance-induced vibrations of the rotating components is filtered out.
|Neural prosthetic with touch-like sensing|
An apparatus and method is related to providing sensing functions that are similar to “human touch” when located in a prosthetic device such as a bion microstimulator that is implanted in a patient. The apparatus includes a power circuit, a communication circuit and a sensor circuit.
|Wearable cardiac defibrillator system controlling conductive fluid deployment|
In embodiments, a wearable cardiac defibrillator system includes an energy storage module configured to store a charge. Two electrodes can be configured to be applied to respective locations of a patient.
|Loading data generator for use with a therapeutic scaffold and methods for use therewith|
A loading data generator can be used with a scaffold for delivery within a patient. The loading data generator includes a driving circuit electrically coupled to drive an impedance of the scaffold.
|Wireless degradation data generator for use with a therapeutic scaffold and methods for use therewith|
A degradation data generator is used with a scaffold for delivery within a patient. The degradation data generator includes a driving circuit electrically coupled to drive an impedance of the scaffold.
|Adjustable wireless circuitry with antenna-based proximity detector|
An electronic device such as a portable electronic device has wireless communications circuitry. Antennas in the electronic device may be used in transmitting radio-frequency antenna signals.
|Transceiver with asymmetric matching network|
A system on a chip (soc) includes a transceiver comprising a transmitter and a receiver, wherein at least one of the transmitter and receiver has a configurable portion that can be configured to operate in a single ended mode and in a differential mode. Two interface pins are provided for coupling the transceiver to an antenna via a matching network, wherein the two interface pins are shareably coupled to the transmitter and to the receiver.
|Transformer signal coupling for flip-chip integration|
Methods for transformer signal coupling and impedance matching for flip-chip circuit assemblies are presented. In one embodiment, a method for providing an inductive coupling between dies may include fabricating a first inductor on a first die using a passive process, fabricating a second inductor on a second die using a semiconductor process, and assembling each die so the first and second inductor are configured as a transformer.
|Reconstruction pulse shape integrity in feedback control environment|
A switched mode power converter includes a closed loop feedback control mechanism for regulating an output characteristic and a resonant type circuit for inclusion of resonant energy delivery. The characteristic impedance of the resonant type circuit is modified from an optimal energy transfer configuration to one that dampens fluctuations in a feedback signal used by the closed loop feedback mechanism.
|Led lighting apparatus for use with ac-output lighting ballasts|
An apparatus for interfacing a ballast to at least one light emitting diode (led) includes a passive rectifier circuit and matching circuit coupled to an input port and/or an output port of the passive rectifier circuit and configured to at least partially match an impedance of the ballast.. .
|Utilization of antenna loading for impedance matching|
Techniques for utilization of antenna loading for impedance matching are described. In at least some embodiments, a device (e.g., a smart phone) includes multiple antennas that are employed to send and receive wireless signals for the device.
A module includes: a diplexer that includes a first terminal, a second terminal, and a common terminal coupled to an antenna; a first switch that is coupled to the first terminal, includes first ports, and selects, from the first ports, and connects one port to the diplexer; a first duplexer that is coupled to at least one of the first ports; a second duplexer that is coupled to the second terminal and has a passband different from a passband of the first duplexer; and a first impedance portion that is coupled to another port of the first ports.. .
|Communications connectors including transmission lines having impedance discontinuities that improve return loss and/or insertion loss performance and related methods|
Communications plugs are provided that include a housing that receives the conductors of the communication cable. A printed circuit board is mounted at least partially within the housing.
|Dynamic adaptation of continuous time linear equalization circuits|
An embodiment of the invention includes dynamically adjusting gain peaking of circuit logic such that error rates are acceptable across various process/voltage/temperature (pvt) ranges. An embodiment uses pvt dependant programming, such as but not limited to resistance compensation (rcomp) codes, to control impedance compensation logic, such as but not limited to a continuous time linear equalization (ctle) circuit.
|Test apparatus and plasma processing apparatus|
Disclosed is a test apparatus for efficiently and accurately testing a high frequency voltage dependency of an impedance of a test object without damaging the test object. The test apparatus includes a high frequency power source unit, a reference waveform generator, a matching device, an oscilloscope, a control panel, and a main control unit.
|System and method for monitoring cardiomyocyte beating, viability, morphology, and electrophysiological properties|
Devices, systems and methods for monitoring excitable cells, such as cardiomyocytes, on microelectrode arrays that couple the electro-stimulation of excitable cells to induce or regulate cardiomyocyte beating and the simultaneous measurement of impedance and extracellular recording to assess changes in cardiomyocyte beating, viability, morphology or electrophysical properties in response to a plurality of treatments.. .
|Dynamic modification of rf array coil/antenna impedance|
A magnetic resonance (mr) system (10) minimizes noise for modes of an array of coils (281, 282, . .
|Wireless electric power transmitter|
A wireless electric power transmitter for transmitting electric power for a charging function to a wireless electric power receiver is provided. The wireless electric power transmitter includes an electric power supply unit which supplies electric power; an amplifier which amplifies and outputs the electric power supplied from the electric power supply unit by a preset gain as a magnitude of measured impedance increases; and a transmitter which transmits the amplified electric power to the wireless electric power receiver..
|Solid-state lighting apparatus with filament imitation for use with florescent ballasts|
A lighting apparatus includes a solid-state lighting circuit, a ballast connection port including first and second terminals and a filament-imitating impedance coupled between the first and a second terminals of the ballast connection port and to an input terminal of the solid-state lighting circuit. The filament-imitating impedance may be configured to transfer power at a nominal frequency of an output produced by the ballast and to provide an impedance between the first and second terminals of the ballast connection port that prevents shutdown of the ballast.
|Resonance-type non-contact power supply system|
A resonance-type non-contact power supply system is configured such that a power supply section is changeable in output frequency, and has an impedance measuring section that measures the input impedance of a resonant system. The power supply system includes a control section that performs control for transmitting proper power to power receiving equipment after changing the output frequency (fo) of the power supply section to lie within one of the frequency ranges f1≦fo≦f2, .
|Apparatus for transmitting magnetic resonance wireless power using higher order mode resonance, receiving terminal, and method for transmitting and receiving wireless power using the same|
A method includes matching a basic mode frequency signal and a higher order mode frequency signal to a multi-band frequency signal with respect to a signal in the form of the square wave, transferring the matched basic mode frequency signal and higher order mode frequency signal simultaneously to a multi-resonance reception resonator, converting output impedance of the basic mode frequency and the higher order mode frequency which are received through the reception resonator into a conjugate value of input impedance of the basic mode frequency and the higher order mode frequency of a receiver, and converting the converted multi-band frequency signal into an electric power that is required in a load and transferring the electric power to the load.. .
|Mitigation of far-end crosstalk induced by routing and out-of-plane interconnects|
In accordance with one aspect of the present description, a transmission line such as a microstrip or stripline transmission line, has stub-shaped projections adapted to compensate simultaneously for both far-end crosstalk (fext) induced by inductive coupling between the transmission line and an adjacent transmission line, and also far-end crosstalk induced by inductive coupling between the vertical electrical interconnect at the far end of the transmission line and an adjacent vertical electrical interconnect electrically connected to the adjacent transmission line. In another aspect of the present description, a microstrip transmission line may have multiple stubby line sections having different resistances and impedances to more gradually transition from to the typically low impedance characteristics of vertical interconnects such as the pth vias and socket connectors.
|Paddle card with improved performance|
A paddle card construction disclosed for use in connecting electronic devices together. The paddle card takes the form of a circuit board that has a plurality of conductive contact pads arranged thereon in pairs.
|Flat-plate type pecvd device|
The present application discloses a flat-plate type pecvd device including a vacuum chamber for accommodating a work piece and a plasma emitter provided above the vacuum chamber. The plasma emitter includes an emitting box fixed to the vacuum chamber, and a radio frequency impedance matching device provided above the emitting box.
|Maintaining a measurement gap in a rheometer|
A rheometer includes a drive shaft, a drag cup motor for rotating the drive shaft, a first measuring object supported by the drive shaft, a second measuring object, a linear position sensor, and processing and control electronics. The linear position sensor includes a target (e.g., an aluminum target) mounted to the drive shaft, and a pair of coils.
|Dram memory interface|
It is proposed a dram memory interface (40) for transmitting signals between a memory controller device (50) and a dram memory device (52). The dram memory interface comprises: data lines (44) for transmitting data signals; one or more control line(s) for transmitting control signals; one or more address line(s) for transmitting address signals; for each line, a transmitter device (41) connected to a first end of the line and a receiver device (42) connected to a second end of the line; wherein: each line is a single ended line wherein a signal transmitted on the line is referenced to a first reference voltage line (46); and —each line has an termination (z1, z2) on both the first and second ends of the line by connecting a first impedance (z1) to the first end of the line and a second impedance (z2) to the second end of the line..
|Usb key and a method for communication between the usb key and a terminal|
A usb key and a method for communication between the usb key and a terminal are provided, of which the usb key includes an interface module, a power module and an mcu module. The mcu module is configured to make initialization setting after power on, check for power level status of each mode pin in the mcu module, and in case of the power level status conforms to a first predetermined condition, set the pin for serial interface communication in the mcu module to a high impedance state, configure a usb function, receive a request for enumerating the device being initiated by a terminal connecting to the interface module, and after enumeration, perform usb communication with the terminal; and in case that the power level status conforms to a second predetermined condition, set a pin for performing usb communication in the mcu module to high impedance state, set the serial interface function, initiate a request for enumerating the device to the terminal connecting to the interface module, and after enumeration, perform a serial-interface communication with the terminal.
|Impedance devices and methods of using the same to obtain luminal organ measurements|
Impedance devices and methods of using the same to obtain luminal organ measurements. In at least one embodiment of an impedance device of the present disclosure, the impedance device comprises an elongated body having a distal body end, and a first electrode located along the elongated body at or near the distal body end, the first electrode configured to obtain one or more conductance values within a mammalian luminal organ within an electric field, wherein a measured parameter of the mammalian luminal organ can be calculated based in part upon the one or more conductance values obtained by the first electrode..
|Controlled-impedence cable termination using compliant interconnect elements|
An apparatus for terminating a controlled-impedance cable using compliant electrical contacts to provide an interface to another device. The terminator includes a conductive ground block for securing the cable by its ground shield and providing a common ground.
|Impedance-based sensing of adherent cells on a digital microfluidic device|
Devices and methods are provided for measuring, on a digital microfluidic platform, electrical signals associated with the impedance of adherent cells. In one embodiment, a sub-droplet of cell culture media containing adherent cells is passively dispensed at a pre-selected electrode location where a local hydrophilic surface region is provided, and adherent cells are attached to the local hydrophilic surface region.
|Method and system for determining a number of load coils in a transmission line|
A method and system for determining a number of load coils in a transmission line are provided. An impulse response of the transmission line is calculated from a characteristic impedance of the transmission line.
|Circuit and method for reading a resistive switching device in an array|
A read circuit for sensing a resistance state of a resistive switching device in a crosspoint array utilizes a transimpedance equipotential preamplifier connected to a selected column line of the resistive switching device in the array. The equipotential preamplifier delivers a sense current while maintaining the selected column line at a reference voltage near a biasing voltage applied to unselected row lines of the array.
The disclosure provides a power converter and method for controlling same, comprising a plurality of switch elements, an inductive reactor, and at least two ports for the movement of electrical energy. Any energy-moving port may be made unipolar, bidirectional, bipolar, or bidirectionally bipolar.
|Electrostatic discharge protection apparatus|
Esd protection apparatus disclosed herein include an esd trigger circuit to sense the occurrence of an esd event and an esd discharge device to provide a low impedance path to ground through which to discharge energy associated with the esd pulse. Some embodiments also include a vdd turn-on clamp to prevent the esd discharge device from switching to a conductive state during a vdd power-on event.
|Planar inverted f antenna|
Provided is a planar inverted f antenna to which a feeding line can be readily connected. Two slits are provided from the open end side of a main conductive plate that functions as an excitation conductive plate up to locations where input impedance is z (=50Ω).
|Systems and methods for impedance switching|
Systems and methods for switching impedance are provided. In some aspects, a system includes first and second impedance elements and an impedance switch module, which includes a third impedance element coupled between the first and second impedance elements and a switch parallel to the third impedance element.
|Amplifier with switchable common gate gain buffer|
An amplifier having a switchable common gate gain buffer is disclosed. In an exemplary embodiment, an apparatus includes a plurality of selectable gain channels that provide constant input impedance at a common input to receive an input signal and generate an output signal having at least one of selected gain and current characteristics.
|Voltage monitoring apparatus|
In a voltage monitoring apparatus, a capacitor circuit includes at least one capacitor. Input-side switches are connected to electrode terminals of at least one battery cell, and apply voltage to terminals of the capacitor.
|Apparatus and method for balancing impedance of a resistivity measuring tool|
Techniques related to making resistivity measurements of an underground formation surrounding a borehole involve using a tool having an insulating pad mounted on the conductive body of the tool. The pad has a current injector electrode and a current return electrode electrically isolated from each other and mounted on a face of the pad.
|Electrochemical cell or battery with reduced impedance and method for producing same|
The invention disclosed is a method for decreasing the internal resistance or impedance of a battery or electrochemical cell is described which comprises the step of discharging the battery or cell until it reaches an overdischarge condition and maintaining the battery or cell in the overdischarge condition for a period of time sufficient to effect a diminution of the internal resistance or impedance of a battery or electrochemical cell; and a battery or electrochemical cell having a reduced impedance.. .
|An acoustic ceiling for a capacitive power transfer system|
An acoustic ceiling tile (200) operating as a capacitive power transfer sys tem comprises a first layer (231) comprising a non-conductive material; at least a pair of receiver electrodes (220, 221) of the capacitive power transfer system configured on a first side of the first layer; a foam layer (240) having a side substantially covered with the first layer; and a load (210) connected to an inductor (212) and to the pair of receiver electrodes, wherein the load and the inductor are configured in a chamber formed between the first layer and the foam layer, wherein a power signal generated by a power driver is wirelessly transferred from a pair of transmitter electrodes to the pair of receiver electrodes (220, 221)to power the load when a frequency of the power signal substantially matches a series-resonance frequency of the inductor and a capacitive impedance created between the pair of receiver electrodes and the pair of transmitter electrodes.. .
|Self-tuned dielectric barrier discharge|
A plasma generating system. A pair of electrodes are spaced apart by an electrode gap.
|Tuning a parameter associated with plasma impedance|
Systems and methods for tuning a parameter associated with plasma impedance are described. One of the methods includes receiving information to determine a variable.
|Method of designing semiconductor integrated circuit|
A method of designing a semiconductor integrated circuit, includes inserting, between a power supply voltage and a ground voltage, at least two types of capacitor cells which have a different ratio, the ratio being between an inverse number of a capacitance value of a capacitative element and a resistance value of an equivalent series resistance, such that an impedance between the power supply voltage and the ground voltage in a resonance frequency according to capacitances of the at least two types of capacitor cells and an external inductance, and an impedance between the power supply voltage and the ground voltage in a target frequency, are near respective desired values or less than or equal to the respective desired values.. .
|Line termination methods and apparatus|
Methods and apparatus for termination of signal lines coupled to a number of memory devices are disclosed. One such method includes adjusting an input impedance of one or more terminals of an interface of a memory device in response to the memory device receiving a particular address.
|Torque detecting device and electric power steering device|
There is provided a torque detecting device for providing a highly accurate torque signal, and an electric power steering device using the torque detecting device. A torque sensor is provided with a first coil pair and a second coil pair, which detect a relative displacement between an input shaft and an output shaft by corresponding the relative displacement to a change in impedance.
|Control of etch rate using modeling, feedback and impedance match|
A method for achieving an etch rate is described. The method includes receiving a calculated variable associated with processing a work piece in a plasma chamber.
|Low impedance oxide resistant grounded capacitor for an aimd|
A hermetically sealed filtered feedthrough assembly for an aimd includes an insulator hermetically sealed to a conductive ferrule or housing. A conductor is hermetically sealed and disposed through the insulator in non-conductive relation to the conductive ferrule or housing between a body fluid side and a device side.
A surgical apparatus includes: a treatment section treating a living tissue; an energy generation section generating energy for providing ultrasound vibration or high-frequency current to the treatment section; a probe provided in the treatment section, for performing the ultrasound vibration; a liquid feeding unit supplying a liquid; a liquid feeding conduit feeding the liquid; a liquid feeding port, provided in the treatment section, for feeding the liquid toward the probe to feed the liquid to between the living tissue and the treatment section; a liquid feeding unit supplying the liquid to the liquid feeding conduit; an impedance detection section detecting an impedance of the living tissue is in contact with the treatment section; and a control section that controls the liquid feeding unit, after the stoppage of the output of the energy, so that as the impedance is larger, a predetermined period of time or a predetermined amount increases.. .
|System and method for assessing the formation of a lesion in tissue|
A method and system for assessing lesion formation in tissue is provided. The system includes an electronic control unit (ecu) configured to acquire magnitudes for a component of a complex impedance between an electrode and tissue, and the power applied to the tissue during lesion formation.
|Ablation device with sensor|
An electrosurgical device having a distal tip for creating a lesion on tissue includes a first electrode and a second electrode that are parallel for the delivery of rf energy to tissue. A sensor electrode is provided parallel to and spaced away from the first electrode a different distance than the second electrode.
|Method and apparatus for selecting differential input leads|
An physiological data acquisition apparatus includes three or more leads, at least one ac current source, a switching mechanism structured to selectively couple the current source to selected lead pairs to inject an ac current across the selected lead pairs which produces an ac voltage across the selected lead pair, and a processing device. The processing device is structured to (i) determine an impedance across the current selected lead pair based on the ac voltage, (ii) determine whether the impedance is less than a predetermined threshold, (iii) if the impedance is less than the predetermined impedance threshold cause the current selected lead pair to be used for generating physiological parameter data, and (iv) if the impedance is not less than the threshold cause the switching mechanism to couple the at least one ac current source to a new selected pair of the leads..
|Systems and methods for sensing external magnetic fields in implantable medical devices|
Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields.
|Method and apparatus for obtaining cardiovascular information by measuring between two extremities|
A method and an apparatus for obtaining information on a cardiovascular system beat by beat and continuously which are based exclusively on measurements between two limbs and effected with a pair of distal electrodes on each limb. The measurement is made by causing an alternating current to flow between one electrode of each limb and measuring the potential difference between the other two electrodes, one also on each limb.
|Electrophysiological analysis system|
The invention provides an electrophysiological analysis system, in particular for detecting pathological states. This system comprises: electrodes intended to be placed in different regions of the body that are well away from each other; an adjustable dc voltage source for generating successive dc voltage pulses varying in magnitude from one pulse to another, the duration of the pulses being equal to or greater than about 0.2 seconds; a switching circuit for selectively connecting a pair of active electrodes to the voltage source and for connecting at least one other high-impedance electrode; and a measurement circuit for recording data representative of the current in the active electrodes and potentials on at least certain high-impedance connected electrodes in response to the application of said pulses.
|Method for fabricating cu-in-ga-se film solar cell|
A method for fabricating a cu—in—ga—se film solar cell is provided. The method comprises: a) fabricating a molybdenum back electrode on a substrate; b) fabricating a cu—in—ga—se absorbing layer on the back electrode by fractional sputtering in a plurality of sputter chambers; c) performing an annealing; d) fabricating an in2se3 or zns buffer layer on the cu—in—ga—se absorbing layer; e) fabricating an intrinsic zinc oxide high impedance layer on the in2se3 or zns buffer layer; f) fabricating an indium tin oxide film low impedance layer on the intrinsic zinc oxide high impedance layer; g) fabricating an aluminum electrode on the indium tin oxide film low impedance layer..
A splitter includes, in parallel between trunk terminals and branch terminals, a signal branching circuit that blocks distributed power and passes a plc communication signal and a power branching circuit that blocks the communication signal and passes the distributed power. In the signal branching circuit, impedance viewed from the branch terminal side is matched with characteristic impedance of a power line and impedance viewed from the trunk terminal side is higher than impedance viewed from the branch terminal side, in the frequency band of the communication signal.
|Reducing impedance of a printed circuit board through a square wave pattern of plated-through holes|
Disclosed are a method and system to reduce impedance of printed circuit boards through an interconnecting of printed circuit boards using a square wave pattern of plated-through holes. A method of connecting a first printed circuit board to a second printed circuit board comprises forming a square wave pattern of the first printed circuit board and the second printed circuit board and adjoining the first printed circuit board and the second printed circuit board.
|Storage system and printed circuit board|
In the present invention, generation of occurrence of a wiring area is prevented, and a reflection by an inconsistency of a characteristic impedance of a high-speed signal line and a through hole connecting portion. By doing so, a conductor pattern of a raised shape is formed on each of front and back of a through hole, on a gnd layer closest to the high-speed signal line in the vicinity of the connecting portion of the high-speed signal line and the through hole.
|Electrode system for proximity detection and hand-held device with electrode system|
An electrical hand-held device is provided with improved proximity detection, which can be placed on a surface and has at least one transmission electrode, at least one reception electrode and at least one compensation electrode arranged between transmission electrode and reception electrode. The transmission electrode and the compensation electrode can be supplied with an electric switching signal of predetermined signal frequency and predetermined signal amplitude.
The invention relates to a coaxial-impedance synthesizer, comprising: a longitudinal central (0x) conductor (1); an outer conductive tube (2) arranged coaxially to the conductor (1); and at least one probe (4) mounted so as to longitudinally translate around the conductor (1), the coaxial-impedance synthesizer being characterized in that the outer tube (2) includes two separable half-tubes, such that the probe (4) is permitted to move longitudinally, relative to the central conductor (1), to a desired position when the two half-tubes are spaced apart from each other, and when the two half-tubes are near each other, the outer periphery of the probe (4) and the inner wall of the outer tube are in contact with each other.. .
|Impedance matching device and control method|
In an impedance matching device, a storage unit stores a control value representing a load value and a value equivalent to input impedance in advance. The control value identifies inductance and capacitance values matching a predetermined impedance value by use of either a first or second matching circuit.
|Variable gain amplifier|
A variable gain amplifier (100) includes a transistor (110), an fb impedance section (120), a source impedance section (130), a drain impedance section (140), a gain controller (150), and a frequency characteristic controller (160). The gain controller (150) varies impedance of one of the fb impedance section (140), the source impedance section (130), and the drain impedance section (140), and outputs a gain control signal.
|On chip electrostatic discharge (esd) event monitoring|
An approach for monitoring electrostatic discharge (esd) event of an integrated circuit. The approach includes a canary device for exhibiting an impedance shift when affected by an esd pulse, wherein circuit drain of the canary device is connected to an input terminal of the circuit structure.
|Control device for oxygen concentration sensor|
A control device for controlling an oxygen concentration sensor includes: a voltage sweeping unit for applying a voltage to the sensor for a time interval during an impedance detection process; a pre-sweeping voltage memory for storing a terminal voltage of the sensor as an initial terminal voltage just before applying the voltage; an impedance detection unit for detecting an element impedance; a voltage returning unit for returning the terminal voltage to the initial terminal voltage after a predetermined time interval has elapsed; a monitoring unit for monitoring the terminal voltage after the voltage returning unit starts returning the terminal voltage; a determination unit for determining whether a monitored terminal voltage of the sensor reaches a stored terminal voltage in the memory; and a stop unit for stopping a returning operation of the voltage returning unit when the monitored terminal voltage reaches the stored terminal voltage.. .
|Transparent capacitive wireless powering system|
A transparent capacitive powering system (200) is disclosed. The system comprises a pair of receiver electrodes (241, 242) connected to a load (250) through an inductor (260), wherein the inductor is coupled to the load to resonate the system; and a transparent infrastructure (220) having at least a first layer (130) of a non-conductive transparent material and a second layer (120) of a conductive transparent material coupled to each other, wherein the second layer is arranged to form a pair of transmitter electrodes (221, 222), wherein the pair of receiver electrodes are decoupled from the second layer, thereby forming a capacitive impedance between the pair of transmitter electrodes and the pair of receiver electrodes, wherein a power signal generated by a driver (210) is wirelessly transferred from the pair of transmitter electrodes to the pair of receiver electrodes to power the load when a frequency of the power signal substantially matches a series-resonance frequency of the first inductor and the capacitive impedance..
|Method and system for maximum achievable efficiency in near-field coupled wireless power transfer systems|
Methods and systems for maximum efficiency achievable in near-field coupled wireless power transfer systems are disclosed and may include configuring coil geometry, independently of load impedance and source impedance, for a transmit (tx) coil and a receive (rx) coil based on a media expected to be between the coils during operation. A desired susceptance and conductance may be determined and an impedance of an amplifier for the tx coil may be configured based on the determined susceptance and conductance.
|Feeding connector for feeding electric power from vehicle to external power receiving device, method for identifying the connector, system for identifying the connector, and feeding system using the connector|
A feeding connector that connects a vehicle with an external power receiving device when electric power is fed from the vehicle to the power receiving device is allowed to be fitted to a connecting portion to which a charging connector that connects the vehicle with an external feeding device is fitted when an electric storage device installed on the vehicle is charged with electric power from the feeding device, and, when the feeding connector is in a particular condition of fit with the connecting portion, an impedance of a particular signal path provided in the feeding connector falls within an impedance range for feeding which is set as a range of impedance different from an impedance range for charging which is set as a range of impedance of a signal path provided in the charging connector and corresponding to the particular signal path. A method for identifying the feeding connector, a system for identifying the feeding connector, and a feeding system using the feeding connector are also provided..
|Dual use rfid/eas device|
A radio frequency identification (rfid) device has multiple modes of operation. One of the modes of operation is an electronic article surveillance (eas) mode, which is used to allow use of the rfid device as an eas device.